change boxed type support to use ref instead of duplicate for copy. add $pathdef->copy, with doc that reminds people it's not the same as Glib::Boxed::copy.
change boxed type support to use ref instead of duplicate for copy.
add $pathdef->copy, with doc that reminds people it's not the same as
Glib::Boxed::copy.

svn path=/trunk/; revision=90

GNOME/perl-Gnome2-Canvas,GNOME/perl-Gnome2-Canvas